Slide for rules.



' w.1. BOUSQUET.

SLIDE FOR RULES. APPLICATION FILED JUNE '4. 191B.

Patented J an. 21,1919.

I N V EN TOR.

WILLIAM J. BOUSQUET, 0F SPRINGFIELD, MASSACHUSETTS.

SLIDE FOR RULES.

To all 'wkom z't may concern:

Be it known that I, WILLIAM J. Bousomrr,

a citizen of the United States of America, I

residin in Springfield, Hampdencounty, Massac usetts, have invented new and useful Improvements in Slides for Rules, of which the followin is a. specification, reference being had to t e accompanying drawings and numerals of reference marked thereon.

The object of my invention 1s to provide a slide of simple and economical construction adapted to be applied to a' rule so that the readings may be convenient. Further objects are shown in the following portlon of the specification.

I accomplish the objects of my inventlon by the construction herein shown.

In the accompanyin drawing in which like numerals of re erence indicate. like parts Figure 1 is a perspective view of a steel rule provided with my improved slide.

Fig. 2 is a plan view of the same.

Fig. 3 is a vertical section taken on line 3-3 of Fig. 2.

Fig. 4 'isa horizontal section taken on line 44 of Fig. 2.

Fig. 5 is a. section taken on line 55 of Fig. 2.

Fig. 6 is aperspective of the slide detached from the rule.

The slide may be made of any size desired to fit rules of various dimensions. Its. use, however, will be found most extensive in connection with small steel rules usually employed by mechanics and usually carried in the vest pocket. The slide is formed of sheet'met-al, preferably stamped up and in order to rovide for rules of triflingly varying widt s the body portion 1, is adapted to be sprung over the rule, as 6, thus throwing the side portions 4 outwardly or apart thus allowin the employment of the slide with rules of trifling variations in width.

In order to provide for rules of different thicknesses and to insure the requisite frictional contact, I form the lower over hang ing portions 5 with upwardly projecting contact parts which bear against the surface Specification of Letters Patent.

- Application filed June 4, 1918. Serial No. 238,136.

Patented Jan. 21, 1919.

of the rule with the requisite force so as to prevent accidental sliding of the rule.

In order to facilitate the movement of the slide I provide the thumb or finger piece 3 formed cup-shaped so that in moving the sl de danger of slipping of the thumb or finger will be avoided.

It will readily be seen that the slide in conjunction with the rule may be employed in the ordinary manner, and also as a depth gaeun any place where the opening is of su cient size to permit the rule to enter or where there is suflicient clearance at the side so that the slide may be forced down against the upper surface of the material being measured. The thumb or tail piece 3 serves not only as a convenient means for moving the slide, but serves also as a means for securely supporting the rule and slide in the pocket or belt, it simply bein necessary to force the outer wall of the poo et or belt, or other part to which it is desired to attach the device, in the opening between the thumb piece 3 and the rule. Thus danger of accidental loss will be avoided.

The part 4 on the upper face is referably made parallel with the face of tlie rule and lies closely adjacent the rule surface so that fine readings on the rule may be easily made. The lower portions of the engaging parts project a slight distance below the ody of the rule, and are provided as above stated with upwardly pro'ectin en aging ridges 5 to bear against t e ru e w ile at the same time the shape is such as to permit the opening of the engagin surface to the requisite extent to permlt the insertion of rules, of slightly differing thickness.

Having therefore described my invention,

the arched body portion being a apted to s memes be compressed toseparate the engaging porformed of a single piece of metal having an tions, substantially as stated. arched body and spring engaging members 3. A slide formed of a single piece of adapted to bear against the upper and 10 spring metal adapted to spring outwardly lower surface of the rule adjacent itsedges, 5 on compression of the body, substantially as said body being prolonged to form a tail stated. 7 piece.

4. The combination With a rule of a slide WILLIAM J. B'OUSQUE-T. 

